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--></style></head><body bgcolor=white lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt'>Apologies in advance for cross-posting – but I’m not sure which of the two mailing lists this belongs to.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>A key (say, private key) is loaded from the pkcs11 engine via </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>privkey = ENGINE_load_private_key(engine, <whatever else>);</span><span style='font-size:11.0pt'> and this operation succeeds.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>However the resulting key handle has its </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>engine == NULL</span><span style='font-size:11.0pt'>. I looked for a method or a macro to explicitly set that value to the pointer to the engine that this key is bound to, but couldn’t find any. I define new methods such as </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>pkcs11_pkey_rsa_decrypt()</span><span style='font-size:11.0pt'>, and try to make OpenSSL aware of them via:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>EVP_PKEY_METHOD *orig_pmeth = EVP_PKEY_meth_find(EVP_PKEY_RSA);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'> EVP_PKEY_METHOD *pmeth = EVP_PKEY_meth_new(EVP_PKEY_RSA, EVP_PKEY_FLAG_AUTOARGLEN);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'> EVP_PKEY_meth_copy(pmeth, orig_pmeth);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'> EVP_PKEY_meth_get_decrypt(orig_pmeth, &pdecr_init, &pdecr);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'> EVP_PKEY_meth_set_decrypt(pmeth, pdecr_init, pkcs11_pkey_rsa_decrypt);</span><span style='font-size:11.0pt'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>And then there’s a function </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>PKCS11_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmethods, const int **nids, int nid)</span><span style='font-size:11.0pt'> that assigns the above </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>pmeth</span><span style='font-size:11.0pt'> to </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>*pmethods</span><span style='font-size:11.0pt'>. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Is the above correct/sufficient? Somehow it seems to never invoke </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>pkcs11_pkey_rsa_decrypt()</span><span style='font-size:11.0pt'> when it should be used.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>How can one set the </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>EVP_PKEY->engine</span><span style='font-size:11.0pt'> field in 1.1+?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>In </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>ENGINE_set_pkey_meths(engine, pkey_meths)</span><span style='font-size:11.0pt'> what should </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>pkey_meths()</span><span style='font-size:11.0pt'> actually be? Is it documented? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>When does libcrypto use </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>ENGINE->pkey_meths</span><span style='font-size:11.0pt'> methods instead of </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>ENGINE->rsa_meth</span><span style='font-size:11.0pt'>? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Who/what entity is supposed to invoke </span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>ENGINE->pkey_meths</span><span style='font-size:11.0pt'> to retrieve the RSA methods block? <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Is it normal if on a key (</span><span style='font-size:11.0pt;font-family:"Andale Mono",sans-serif'>EVP_PKEY *</span><span style='font-size:11.0pt'>) loaded by an engine, engine ptr is NULL? And if not – who/how should set those pointers to the correct value?<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-size:10.5pt;color:black'>--<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;color:black'>Regards,<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:10.5pt;color:black'>Uri Blumenthal</span><o:p></o:p></p></div></body></html>